Steam turbine design pdf

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these turbines is the design of the turbine blades. It is through a century of development and advancement in steam turbine blade design that steam turbine efficiency rose from a mere 60% to 90% or better. Thus, the better the design of the blade, the more efficient the turbine will be; and the more efficient the turbine is, higher steam parameters since this enables a raised efficiency. Steam parameters refer to the pressure and the temperature of the steam. The aim of this study was to generate concepts for steam turbine inlet control valves designed for higher pressure and temperature in comparison with the present design. Future steam power plants using Modern GE steam turbine designs for electrical power generation are the result of more than 90 years of engineering development. The product line of fossil-fueled, reheat steam turbines for both 50Hz and 60Hz applications extends from 125-1100 MW and is based on a design philosophy and com-mon characteristic features that ensure high relia- Chapter-2. Each Items of Guideline . Article 29. General Provision . Article 29-1. Classification of Steam Turbine by Types . The general features and selection criteria and use depending on the type of steam turbine are summarized in. The gas turbine compresses air and mixes it with fuel that is then burned at extremely high temperatures The flow of steam is 4,000 tons per hour, or 1.1 tons per second. fFig. 13 TURBINE-BLADE CHARACTERISTICS can be studied in three general ways: by water- tank analogy (top), by direct calculation (middle) and by airflow tests in a rotating cascade (bottom). It can be seen that the three methods give comparable results. Steam Turbine Design. Impulse Turbine Impulse steam turbine stage consists as usual from stator which known as the nozzle and rotor or moving blades Impulse turbine are characterized by the that most or all enthalpy and hence pressure drop occurs in the nozzle. The rotor blades can be recognized by their shape, which is symmetrical and have entrance and exit angles around 20o.